Automatic feeding device of numerical control machine tool

By designing an automatic feeding device, which uses sprockets and transmission chains to drive the active roller to achieve automatic conveying of sheet metal, the problem of low feeding efficiency on CNC machine tools is solved, and processing efficiency and automation level are improved.

CN224254842UActive Publication Date: 2026-05-19CHANGSHA RENSHENG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA RENSHENG MASCH CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the process of sheet metal processing, CNC machine tools have low automatic feeding efficiency and require frequent manual intervention, which affects processing efficiency and the degree of automation.

Method used

An automatic feeding device was designed, including a material rack, a fixed frame, an adjustable screw, a sprocket, and a transmission chain. The device automatically conveys the sheet metal by driving the drive roller with an electric motor. The height of the device can be adjusted by connecting frames and L-shaped connecting frames to adapt to different CNC machine tools, simplifying the installation process.

Benefits of technology

It achieves automated feeding of sheet materials, reduces manual intervention, improves feeding efficiency, and enhances the installation adaptability and flexibility of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic feeding device of a numerical control machine tool, which relates to the technical field of feeding of the numerical control machine tool and comprises a material frame, a fixing frame is arranged on the front side of the material frame, a distance adjusting screw rod is arranged in the fixing frame, a handle is arranged at the upper end of the distance adjusting screw rod, and a baffle is arranged at the lower end of the handle. Two sets of height telescopic rods are arranged between the baffle and the fixing frame, a plurality of sets of bearing rollers are arranged in the material frame, two sets of driving rollers are arranged in the material frame, chain wheels are arranged at one ends of the two sets of driving rollers, and a transmission chain is arranged between the two sets of chain wheels. According to the automatic feeding device of the numerical control machine tool, the motor drives the driving roller, synchronous rotation is achieved through the chain wheel and the transmission chain, a stable material conveying system is formed in cooperation with the bearing roller, plate-shaped materials on the bottommost layer can be pushed out of the material frame to the numerical control machine tool, therefore, feeding operation is completed, and the feeding burden of a user is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool loading technology, and in particular to an automatic loading device for CNC machine tools. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. In the process of CNC machine tools processing sheet metal, the performance of the automatic feeding device directly affects the processing efficiency and the degree of automation.

[0003] In the process of processing sheet metal in CNC machine tools, the sheet metal is often manually placed onto the conveyor belt and fed into the CNC machine tool. This method has the disadvantages of low feeding efficiency and frequent manual intervention, which have certain adverse effects on the user experience. In order to overcome the shortcomings of the existing technology, we propose an automatic feeding device for CNC machine tools. Utility Model Content

[0004] The main purpose of this utility model is to provide an automatic feeding device for CNC machine tools, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic feeding device for a CNC machine tool includes a material rack, a fixed frame at the front of the material rack, an adjusting screw inside the fixed frame, a handle at the upper end of the adjusting screw, a baffle at the lower end of the handle, two sets of height telescopic rods between the baffle and the fixed frame, multiple sets of load-bearing rollers inside the material rack, two sets of drive rollers inside the material rack, a sprocket at one end of each of the two sets of drive rollers, a transmission chain between the two sets of sprockets, and a motor at one end of one set of sprockets.

[0007] Preferably, two sets of L-shaped connecting frames are provided on both the left and right sides of the material rack, the outer wall of the L-shaped connecting frame is provided with a foot, the outer wall of the foot is provided with a bolt, the inside of the material rack is provided with a square hole, and two sets of connecting frames are provided on the front side of the material rack.

[0008] Preferably, the sprocket and the drive chain mesh, the adjusting screw and the fixed frame are threadedly connected, and bearings are provided between the load-bearing roller and the drive roller and the material rack, and the load-bearing roller and the drive roller are movably connected to the material rack through the bearings.

[0009] Preferably, the fixing frame and the material rack are welded together, the baffle and the adjusting screw are fixedly connected, and the handle and the adjusting screw are fixedly connected.

[0010] Preferably, the L-shaped connecting frame and the material rack are fixedly connected, and the connecting frame is provided with multiple sets of screw holes inside.

[0011] Preferably, both the L-shaped connecting frame and the foot are provided with multiple sets of screw holes evenly arranged inside, and the foot and the L-shaped connecting frame are detachably connected by bolts.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The automatic feeding device of this CNC machine tool, through the structure of sprockets and transmission chains, uses an electric motor to drive the drive roller, which rotates synchronously through the sprockets and transmission chains. Together with the load-bearing roller, it forms a stable material conveying system that can push the bottom plate-shaped material from the material rack onto the CNC machine tool, thereby completing the feeding operation and reducing the feeding burden on the user.

[0014] The automatic feeding device for this CNC machine tool, through the setting of connecting frames and L-shaped connecting frames, etc., the L-shaped connecting frames are detachably connected to the feet by bolts, and the height of the material rack can be adjusted according to the height of the CNC machine tool. At the same time, the multiple sets of screw holes of the connecting frames facilitate quick docking with the main body of the CNC machine tool, enhancing the adaptability and flexibility of the device installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the combined structure of the material rack and the L-shaped connecting frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the combined structure of the fixing frame and the height telescopic rod of this utility model;

[0018] Figure 4 This is a schematic diagram of the combined structure of the drive roller and sprocket of this utility model.

[0019] In the diagram: 1. Material rack; 2. L-shaped connecting frame; 3. Adjustable screw; 4. Foot; 5. Baffle; 6. Connecting frame; 7. Fixing frame; 8. Load-bearing roller; 9. Motor; 10. Height telescopic rod; 11. Handle; 12. Drive roller; 13. Sprocket; 14. Drive chain; 15. Bolt; 16. Square hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Example 1, as Figures 1-4As shown, an automatic feeding device for a CNC machine tool includes a material rack 1. A fixed frame 7 is welded to the front of the material rack 1. An adjusting screw 3 is threadedly connected inside the fixed frame 7. A handle 11 is fixedly connected to the upper end of the adjusting screw 3. A baffle 5 is fixedly connected to the lower end of the handle 11. Two sets of height telescopic rods 10 are arranged between the baffle 5 and the fixed frame 7. The height telescopic rod 10 is composed of two hollow cylinders nested together. The inner rod can slide and extend within the outer rod. The length is adjusted by the relative movement of the two. The outer rod is fixed to the fixed frame 7. The upper end of the inner rod is connected to the baffle 5. Multiple sets of load-bearing rollers 8 and two sets of driving rollers 12 are movably connected inside the material rack 1 through bearings. A sprocket 13 is fixedly connected to one end of each set of driving rollers 12. The two sets of sprockets 13 are connected by a transmission chain 14. One end of one set of sprockets 13 is detachably connected to a motor 9.

[0022] Example 2, as Figures 1-4 As shown, an automatic feeding device for a CNC machine tool has two sets of L-shaped connecting frames 2 fixedly connected to the left and right sides of the material rack 1. The outer wall of the L-shaped connecting frame 2 is provided with a foot 4. Both the foot 4 and the L-shaped connecting frame 2 are provided with multiple sets of screw holes evenly arranged inside. The lower end of the foot 4 is provided with a rubber foot pad. The two are detachably connected by bolts 15. The material rack 1 is provided with a square hole 16 inside, which is used to observe the number of plates inside the material rack 1. Two sets of connecting frames 6 are fixedly connected to the front side. The connecting frames 6 are provided with multiple sets of screw holes inside, which are used to connect with the main body of the CNC machine tool.

[0023] It should be noted that this utility model is an automatic feeding device for CNC machine tools. When in use, the installation position of the foot 4 on the L-shaped connecting frame 2 is adjusted according to the height of the CNC machine tool by bolt 15 to ensure that the device is placed stably. Then, the material rack 1 is connected and fixed to the main body of the CNC machine tool by connecting frame 6.

[0024] Depending on the thickness of the sheet material, turn the handle 11 to drive the adjusting screw 3 to rotate inside the fixed frame 7. Since the adjusting screw 3 is threadedly connected to the fixed frame 7, the baffle 5 moves up and down with the adjusting screw 3. At the same time, the height telescopic rod 10 extends and retracts synchronously. The baffle 5 blocks other sheets to be discharged, so that only one set of sheets is discharged from the material rack 1 at a time.

[0025] The plates to be processed are stacked in the material rack 1. The motor 9 is started. The motor 9 drives the drive roller 12 to rotate. The two sets of drive rollers 12 rotate synchronously through the sprocket 13 and the transmission chain 14, thereby conveying the material to the CNC machine tool.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a CNC machine tool, comprising a material rack (1), characterized in that: The material rack (1) is provided with a fixed frame (7) on the front side. The fixed frame (7) is provided with an adjusting screw (3). The upper end of the adjusting screw (3) is provided with a handle (11). The lower end of the handle (11) is provided with a baffle (5). Two sets of height telescopic rods (10) are provided between the baffle (5) and the fixed frame (7). The material rack (1) is provided with multiple sets of load-bearing rollers (8). The material rack (1) is provided with two sets of active rollers (12). One end of each set of active rollers (12) is provided with a sprocket (13). A transmission chain (14) is provided between the two sets of sprockets (13). One end of one set of sprockets (13) is provided with a motor (9).

2. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: The material rack (1) is provided with two sets of L-shaped connecting frames (2) on both the left and right sides. The L-shaped connecting frames (2) are provided with feet (4) on the outer wall. The feet (4) are provided with bolts (15) on the outer wall. The material rack (1) is provided with square holes (16) inside. The material rack (1) is provided with two sets of connecting frames (6) on the front side.

3. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: The sprocket (13) and the transmission chain (14) mesh, the adjusting screw (3) and the fixed frame (7) are threaded together, and the load-bearing roller (8) and the drive roller (12) are both provided with bearings between them and the material rack (1). The load-bearing roller (8) and the drive roller (12) are both movably connected to the material rack (1) through the bearings.

4. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: The fixed frame (7) and the material rack (1) are welded together, the baffle (5) and the adjusting screw (3) are fixedly connected, and the handle (11) and the adjusting screw (3) are fixedly connected.

5. An automatic feeding device for a CNC machine tool according to claim 2, characterized in that: The L-shaped connecting frame (2) and the material rack (1) are fixedly connected, and the connecting frame (6) and the material rack (1) are fixedly connected. The connecting frame (6) has multiple sets of screw holes inside.

6. An automatic feeding device for a CNC machine tool according to claim 2, characterized in that: The L-shaped connecting frame (2) and the foot (4) are evenly provided with multiple sets of screw holes inside, and the foot (4) and the L-shaped connecting frame (2) are detachably connected by bolts (15).